Thousands of dead fish were found washed up on a beach in Redcar, North Yorkshire.
The bizarre sight was spotted by two-year-old Harry as he walked along Redcar beach with his aunt Olivia Rudd.
Olivia said they were walking along the beach when Harry suddenly started "fish", reports the Gazette Live.
The 20-year-old carer said she looked down and saw thousands of the silver fish on the sand.
Olivia, from the Netherfields area of Middlesbrough, said: "I was in shock.
"It was my nephew, he's only two, who shouted "fish" and then I just kept seeing more and more."
"They looked like a silver shine across the sand, that’s what made my nephew walk over and see them I think.
"They were more in the middle of the sand not exactly close to the water.
"I've never seen anything like it."
"I just pulled my nephew back and shouted my friend to come look at them, she was shocked."
Olivia said that there was a "couple of thousand" fish lying on the beach near to the amusements.
She said she suspects they were all dead as she didn't see them move.
Olivia posted pictures of the unusual sight on social media.
She added: "Some people are saying it’s sand eels and mackerel chase them out.
"A lot are saying they are going down to get them for bait for fishing."
Coastwatch station controller Ray Preston, 73, came across the fish on Thursday morning.
He said they are sand eels which have been washed onto the sand by the tide.
Ray, from Redcar, said: "I have been out fishing this morning. When I came back they were scattered about all over the beach, where the tide had left them.
"They're little sand eels. Normally the mackerel are chasing them in shore, they come in shore to escape the mackerel."
He added: "It's a few years since we have had them on the beach like that.
"The tide leaves them and they can't live out of the water so they just die.
"As soon as the tide comes in they will wash about, the seagulls will have a good feed off them."
